Sökning: "prostaglandin synthase"

Visar resultat 1 - 5 av 56 avhandlingar innehållade orden prostaglandin synthase.

  1. 1. Studies of prostaglandin E2 formationin human monocytes

    Författare :Sofia Karlsson; Jonny Wijkander; Christina Gustafson-Svärd; Karlstads universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; prostaglandin E2; arachidonic acid; phospholipase A2; cyclooxygenase; prostaglandin E synthase; human monocytes; Medical cell biology; Medicinsk cellbiologi; Biomedical Sciences; Biomedicinsk vetenskap;

    Sammanfattning : Prostaglandin (PG) E2 is an eicosanoid derived from the polyunsaturated twenty carbon fatty acid arachidonic acid (AA). PGE2 has physiological as well as pathophysiological functions and is known to be a key mediator of inflammatory responses. LÄS MER

  3. 2. Novel Fatty Acid Dioxygenases of Human and Plant Pathogenic Fungi : Studies by Gene Deletion and Expression

    Författare :Fredrik Jernerén; Ernst Oliw; Ivo Feussner; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; aspergilli; dioxygenase; oxygenase; Magnaporthe oryzae; Gaeumannomyces graminis; Lasiodiplodia theobromae; jasmonic acid; linoleate diol synthase; cyclooxygenase; prostaglandin H synthase; cytochrome P450; oxylipin; hydroperoxide isomerase; allene oxide synthase; Pharmaceutical pharmacology; Farmaceutisk farmakologi; Biochemical Pharmacology; Biokemisk farmakologi;

    Sammanfattning : The dioxygenase-cytochrome P450 fusion proteins (DOX-CYP) comprise a heme-containing enzyme family that shares structural and catalytic properties with mammalian prostaglandin H (PGH) synthases. 7,8-Linoleate diol synthase (7,8-LDS) of Gaeumannomyces graminis was first characterized, and DOX-CYP enzymes are of mechanistic and biological interest. LÄS MER

  4. 3. Prostaglandin E2 in Brain-mediated Illness Responses

    Författare :Louise Elander; Anders Blomqvist; Marianne Schultzberg; Linköpings universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; prostaglandin e2; PGE2; cox-1; cox-2; mPGES-1; fever; anorexia; food intake; HPA-axis; EP-receptor; LPS; IL-1; IL-6; MEDICINE; MEDICIN; Neurobiology; Neurobiologi;

    Sammanfattning : We are unceasingly exposed to potentially harmful microorganisms. The battle against threatening infectious agents includes activation of both the innate and of the adaptive immune systems. LÄS MER

  5. 4. Structure and function of microsomal prostaglandin E synthase-1

    Författare :Sven-Christian Pawelzik; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : The glutathione-dependent enzyme microsomal prostaglandin E synthase-1 (MPGES1) plays a pivotal role in inflammatory diseases. MPGES1 is up-regulated by pro-inflammatory cytokines in concert with cyclooxygenase (COX) -2, and the concerted action of both enzymes leads to the production of induced prostaglandin E2 (PGE2), a potent lipid mediator of inflammation, pain, and fever. LÄS MER

  7. 5. Redox Reactions of NO and O2 in Iron Enzymes : A Density Functional Theory Study

    Författare :Mattias Blomberg; Per Siegbahn; Adrian Mulholland; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; enzyme catalysis; redox reactions; cytochrome oxidase; nitric oxide reductase; hyponitrous acid anhydride; peroxynitrite; myoglobin; prostaglandin synthase; PGHS; NO; N2O; O2; CO; Chemical physics; Kemisk fysik;

    Sammanfattning : In the present thesis the density functional B3LYP has been used to study reactions of NO and O2 in redox active enzymes.Reduction of nitric oxide (NO) to nitrous oxide (N2O) is an important part in the bacterial energy conservation (denitrification). LÄS MER